Compact FPGA-based pulse-sequencer and radio-frequency generator for experiments with trapped atoms

Abstract

We present a compact FPGA-based pulse sequencer and radio-frequency (RF) generator suitable for experiments with cold trapped ions and atoms. The unit is capable of outputting a pulse sequence with at least 32 TTL channels with a timing resolution of 40 ns and contains a built-in 100 MHz frequency counter for counting electrical pulses from a photo-multiplier tube (PMT). There are 16 independent direct-digital-synthesizers (DDS) RF sources with fast (rise-time of ~60 ns) amplitude switching and sub-mHz frequency tuning from 0 to 800 MHz.

References in corpus (4)

• An Optical Lattice Clock with Accuracy and Stability at the $10^{-18}$ Level
• Frequency Comparison of Two High-Accuracy Al+ Optical Clocks
• A Michelson-Morley Test of Lorentz Symmetry for Electrons
• Direct spectroscopy of the ${}^2$S${}_{1/2}{-}^2$P${}_{1/2}$ and ${}^2$D${}_{3/2}{-}^2$P${}_{1/2}$ transitions and observation of micromotion modulated spectra in trapped \Ca

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